Cummins Onan QD 8000 Commercial Mobile Diesel Inverter Generator - 8.0HDKAU-41934, 8 kW Prime, Single-Phase, 120 Volt, Liquid-cooled

Document Library

Brochure/Specification
Brochure/Specification 2
Accessory PDF
Accessory PDF 2
Generator Selection Handbook
Owner Manual
Parts Manual
Warranty T & C
Installation Manual
Emissions Data

Shipping Policy

Our goal is to get your parts and products to you as efficiently and safely as possible. The guidelines below outline what you can expect about fulfillment, shipping, and eligible products.

Shipping and Order Fulfillment Guidelines


Order Fulfillment: Orders usually ship within 1-5 business days. Shipments generally arrive in 1-3 business days after leaving our facilities. Please note that no orders will be fulfilled on Saturday or Sunday; instead, they will be fulfilled the next business day.



Pick Up: You may choose to pick-up your order at no cost from any of our listed locations in the USA and Canada. As soon as the order is ready for pick-up, we will send you an email. Your order should be ready for pickup within 2 – 3 business days, depending on the availability of parts.



Shipping Address: Your shipping address may be either a residential or commercial address in the United States and Canada. We do not ship to P.O. Box addresses, and we do not ship to any addresses outside the USA and Canada.



Method of Shipping: Standard ground shipping is the default shipping method for the USA and Canada.* Once your product is shipped, it should take 1–3 business days for delivery. Standard shipping to Alaska and Hawaii typically takes 14–21 business days.

* Exceptions may apply in shipping to some states in the USA. Currently, Build the Power does not offer shipping to US territories, Nunavut, Northwest Territories or Yukon.

Shipping Fees

Free Shipping: We offer free shipping on all orders.

Eligible Products

All products are eligible for Standard Free Shipping except for the product categories listed below. These products are eligible for Store Pick-Up Only:

Dangerous or hazardous goods, such as batteries.
Products that require special handling, such as a pail of oil or coolant.

Returns and Refunds Policy

We are committed to providing a straightforward, hassle-free return process. Please read our policy to be sure your order qualifies.

If your product was damaged in shipping, or if you received an incorrect part please contact us so that we can assist you. Do not initiate a return for such orders.

Return Guidelines

Return Initiation

Your return must be initiated on Build the Power website. Please do not take your parts to a store without initiating the return online first as your returns will not be accepted.


Return Timeline

Eligible part returns can be initiated for up to 30 days from the shipment or pickup availability date. Returns must be received by the return location within 14 days of return initiation.


Return Method

You may return products either in-store to your original pickup location, or through mail. Drop off returns are only available if you picked up your products at a branch.



In-Store Return: Available only for pickup orders. You will need to initiate the return online first. Look up your order using your Order Number and email address and identify the product(s) you would like to return. You will then have the option to return the product(s) to your original pickup location. You will be issued a Return Confirmation email as soon as you submit your return request. Please bring a copy of the packing slip from your return order along with the products. Note: If you purchased as a signed in user, make sure to sign into your account first.


Mail-In Return: You will need to initiate the return online first. Look up your order using your Order Number and email address and identify the product(s) you would like to return. You will be issued a Return Confirmation email as soon as you submit your return request. Include the packing slip with your parts that are being returned. 


Product Condition

Products purchased on buildthepower.com must be returned in saleable condition — in other words, unused, in the original packaging, and undamaged. Please note, all accepted returns will incur a 15% handling fee.


Products that are Not Eligible for Return

-Superseded and obsolete products or parts.
-Parts that were not purchased through the Build the Power.
-Parts not purchased from Build the Power and non-stocking parts.
-Piston pins except as part of piston or cylinder kits.
-Electronics (including but not limited to sensors)
-Hazardous materials such as paints, sealants, flush kits, lubricants, spray cleaners and other materials.
-Consumable products.
-Software.
-Make-to-Order and Customized items (calibrated fuel pumps, custom specified radiators / alternators / mufflers /adapters / etc.)
-Belts, service tools, and rebuilt or non-genuine parts.
-Printed circuit boards and other electronic components that were shipped in anti-static packaging which have been opened.


Refund Policy

Handling Fees

All accepted parts returns will incur a 15% handling fee.


Return Label

You will be responsible for shipping the return package to the appropriate location. For US returns, we recommend you ship via FedEx to avoid potential delays. If you are returning a product because an incorrect part was shipped, or the product was damaged in shipping please contact us so that we can assist you.


Refund Timeline

Once we have approved the return, a refund will be issued within 7-10 business days.

The E2000LFP Expandable Power Station combines power and flexibility in a portable package. Link it with two EB3000 battery packs to reach an impressive 8064Wh capacity - enough for almost any power need.

With 2000W AC output, it runs most household devices and tools without breaking a sweat. The advanced LiFePo4 batteries deliver outstanding durability, keeping 80% capacity even after 3500 charging cycles.

Charging is quick and flexible. The station accepts up to 1300W input across multiple ports, with 600W maximum solar input. Using solar panels, you'll fully charge in 2-3 hours. Need it faster? Dual AC adapters cut that time to just 1.5-2 hours.

The E2000LFP Expandable Power Station combines power and flexibility in a portable package. Link it with two EB3000 battery packs to reach an impressive 8064Wh capacity - enough for almost any power need.

With 2000W AC output, it runs most household devices and tools without breaking a sweat. The advanced LiFePo4 batteries deliver outstanding durability, keeping 80% capacity even after 3500 charging cycles.

Charging is quick and flexible. The station accepts up to 1300W input across multiple ports, with 600W maximum solar input. Using solar panels, you'll fully charge in 2-3 hours. Need it faster? Dual AC adapters cut that time to just 1.5-2 hours.

The E2000LFP Expandable Power Station combines power and flexibility in a portable package. Link it with two EB3000 battery packs to reach an impressive 8064Wh capacity - enough for almost any power need.

With 2000W AC output, it runs most household devices and tools without breaking a sweat. The advanced LiFePo4 batteries deliver outstanding durability, keeping 80% capacity even after 3500 charging cycles.

Charging is quick and flexible. The station accepts up to 1300W input across multiple ports, with 600W maximum solar input. Using solar panels, you'll fully charge in 2-3 hours. Need it faster? Dual AC adapters cut that time to just 1.5-2 hours.